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Cardiac multidetector computed tomography (MDCT) of spontaneously closed ventricular septal defect

Chiusura spontanea del difetto del setto interventricolare evidenziata mediante tomografia computerizzata multidetettore (TCMS)

  • Cardiac Radiology/Cardioradiologia
  • Published:
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Abstract

Purpose

The authors present the findings of contrastenhanced electrocardiogram (ECG)-gated cardiac computed tomography (CT) in 18 patients with probably spontaneous closure of muscular ventricular septal defect (VSD).

Materials and methods

The study included 2,725 consecutive patients referred to our hospitals for multidetector computed tomography (MDCT) coronary angiography. The patients were between the ages of 5 and 78 [mean±standard deviation (SD) 59±13.86] years, and 1,816 (66.6%) were male. Evaluating the images for coronary artery pathologies revealed pouches or sacs in the central muscular location of the septa of some patients.

Results

All patient records were retrospectively reviewed, and 18 patients were found to have pouches or sacs in the interventricular septum location likely to be spontaneous closure of muscular VSD (0.66% prevalence). MDCT findings of these 18 patients correlated with their echocardiographic findings. Of the patients with muscular VSD, 13 were male and five were female. These 18 patients were initially referred due to indications such as chest pain (n=11), risk-factor assessment (n=3), coronary artery anomaly (n=1), suspected aberrant right subclavian artery due to dysphagia (n=1) and coronary artery bypass graft (n=2).

Conclusions

Our study shows that the incidence of spontaneous closure of muscular VSD with central septum location is probably higher than expected. Thus, some patients initially diagnosed with ventricular diverticula with an apical and marginal septum location may actually have spontaneously closed muscular VSD. This finding may affect previously reported rates of both ventricular diverticula and spontaneous closure of muscular VSD.

Riassunto

Obiettivo

Gli autori presentano i risultati della tomografia computerizzata (TC) cardiaca con l’utilizzo di gating cardiaco e con somministrazione di mezzo di contrasto in 18 pazienti con probabile chiusura spontanea del difetto del setto interventricolare.

Materiali e metodi

Lo studio include 2.725 pazienti consecutivi esaminati mediante TCMS delle arterie coronarie. L’età dei pazienti era compresa tra 5 e 78 anni (media ± DS 59±13,86) di cui 1816 (66,6%) di sesso maschile. In alcuni pazienti, la valutazione delle immagini alla ricerca di patologia coronaria rivelò la presenza di tasche o sacche nel muscolo cardiaco a livello del setto.

Risultati

Tutta la documentazione raccolta è stata rivalutata retrospettivamente. Diciotto pazienti presentavano una tasca o una sacca a livello del setto interventricolare, verosimile espressione di chiusura spontanea del difetto interventricolare (prevalenza 0,66%). I reperti della TCMS di questi 18 pazienti sono stati correlati con i reperti ecocardiografici. Dei pazienti con difetto del setto interventricolare, 13 erano maschi e 5 femmine. Questi 18 pazienti erano stati inizialmente indagati in seguito ad indicazioni quali dolore toracico (n=11), valutazione dei fattori di rischio (n=3), anomalia coronarica (n=1), sospetto di arteria succlavia destra aberrante in seguito a disfagia (n=1) e bypass coronarico (n=2).

Conclusioni

Il nostro studio dimostra che l’incidenza di chiusura spontanea del difetto del setto interventricolare, localizzato nell’area centrale del setto, è probabilmente più alta di quanto ci si attendeva. In questo modo, alcuni pazienti, ai quali inizialmente era stata fatta diagnosi di diverticoli ventricolari a livello apicale e marginale del setto,in realtà possono aver avuto una chiusura spontanea del difetto del setto interventricolare. Questo risultato può incidere sulle percentuali precedentemente riportate sia per quanto riguarda i diverticoli ventricolari sia per quanto riguarda la chiusura spontanea del difetto del setto interventricolare.

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Kantarci, M., Duran, C., Bozkurt, M. et al. Cardiac multidetector computed tomography (MDCT) of spontaneously closed ventricular septal defect. Radiol med 114, 370–375 (2009). https://doi.org/10.1007/s11547-009-0381-y

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  • DOI: https://doi.org/10.1007/s11547-009-0381-y

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